NCIt definition : Human HPRT1 wild-type allele is located in the vicinity of Xq26.1 and is approximately
40 kb in length. This allele, which encodes hypoxanthine-guanine phosphoribosyltransferase
protein, plays a role in purine salvage. Certain allelic variants of the HPRT1 gene
cause HPRT-related gout or Lesch-Nyhan syndrome.;